CFHT Nānā ao All-Sky Timelapse Videos

These timelapse videos are generated each morning (Hawaii Standard Time (UTC-10)),
and span from sunset to sunrise.

Difference
Infrared
Visible

Click on a date below to view the timelapse video from the selected Nānā ao camera.

 

     
Mon Jun 15 2026
Sun Jun 14 2026
Sat Jun 13 2026
Fri Jun 12 2026
Thu Jun 11 2026
Wed Jun 10 2026
Tue Jun 09 2026
Mon Jun 08 2026
Sun Jun 07 2026
Sat Jun 06 2026
Fri Jun 05 2026
Thu Jun 04 2026
Sun May 31 2026
Fri May 29 2026

Nānā ao has two cameras, an optical monochromatic camera, and an infrared camera. Both cameras are fitted with 'fish-eye' lenses to capture >90% of the night sky. The difference image is produced by subtracting the previous infrared image from the current infrared image. This reveals changes in the sky, such as the movement of clouds.

Timelapses are only generated on nights when Nānā ao is operational.
Nānā ao does not operate during periods of precipitation, high winds, or when there is ice and snow on the enclosure. Additionally, some timelapses may not encompass the entire night due to such weather.

Current images from Nānā ao can be found on the CFHT Nānā ao page.

Having trouble viewing or want to save this timelapse?
Use this link to download it: Download Timelapse

Nānā ao All-Sky Timelapse Videos Copyright © Canada France Hawaii Telescope Corporation.
Permission is granted to copy, distribute and/or modify these videos under the terms of the GNU Free Documentation License,
Version 1.3, or any later version, published by the Free Software Foundation. A copy of the license can be found here.
For inquiries, contact info@cfht.hawaii.edu